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Why is my dog's poop green? What should I do about green stool?

Updated On September 23rd, 2025

Pet's info: Dog | Dachshund (Miniature Smooth Haired) | Male | neutered | 1 year old | 13.5 lbs

My dog’s stool came out green. It started normal color, consistency and all that, then changed to this strong green color. What should I do

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4 Answers

Most Helpful Answer

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Answered By Destini R. Holloway, DVM

Veterinarian

Published on December 3rd, 2019

The green color is likely dye from something your pet ingested. I recommend monitoring the stool to see if it changes back to normal color within the next day or two .Chances are it will. Also monitor Pickles a bit more closely to make sure he isn't ingesting something he shouldn't have. If he starts to have any other symptoms such as vomiting, diarrhea, lethargy or decreased appetite, then its best to have him seen by your local vet. Also, if there is any chance Pickles could have gotten into some kind of rat poison/bait, then he should be seen right away. It wouldn't be a bad idea also to go ahead and give Pickles a probiotic to support a healthy GI tract moving forward. Some options that don't require a prescription are: Culturelle (over the counter) OR Foriflora (online, Chewy.com). I hope that Pickles stool returns to normal color soon. Best wishes and take care! : )

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Other Answers

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    Answered By Lauren Kennedy, DVM

    Veterinarian

    Published on June 26th, 2018

    Eating grass should not produce a green stool. If your dog is having abnormally colored stool and there is no recent diet change then there is something abnormal going on. If this is the case I would recommend taking your dog (and a sample of his stool) to the veterinarian to be examined. I hope this helps. Thanks for using Petco Pet Education Center, formerly Petcoach. Best of luck.

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    Answered By Dr. Melanie, BVSc MS

    Veterinarian

    Published on May 1st, 2017

    There are a couple of things that could be causing Domino to have green feces. Depending on what your siblings are feeding him, that could be causing the green color of his feces. I imagine Domino must go outside to go potty, and he could be eating grass when he's outside going to the bathroom. The color could also be caused by an intestinal disorder or GI parasites. You can have him seen by a vet, and bring along as sample of his feces for the vet to examine. The vet can determine what is causing the green color of his feces and what treatment may be needed.

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    Answered By Jessica Desrosiers

    Veterinary Technician

    Published on November 9th, 2017

    If it was a one-time thing I wouldn't be too concerned as dogs can be sneaky about what they get into, and eating some things such as something high in iron or green in color can cause a temporary stool color change. However, if the green stools continue or you're seeing other signs of illness such as diarrhea, changes in appetite, tender belly, vomiting, lethargy, etc, I would bring Ollie and a sample to be examined by a vet to rule out issues such as parasites, illness, etc as well as look into issues such as malabsoption.

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